Introduce
Dongguan Circle Four Metal Materials Co., Ltd

   we supply various kinds of alloy steels, both in plates and round bars.absolutely UT passed quality with competitive price .

 Main grades:

 

1045/ S45C/ CK45

 

P20/ 1.2311

 

P20+Ni/1.2738/718

 

H13/1.2344

 

D2/1.2379

 

D3/1.2080

 

42CrMo/4140

 

P21/ NAK80

 

420/S136H&S136